*{
margin:0;
padding:0;
box-sizing:border-box;
}

html{
scroll-behavior:smooth;
}

body{
font-family:Arial,Helvetica,sans-serif;
background:#071321;
color:#ffffff;
line-height:1.7;
}

.hero{
position:relative;
min-height:100vh;
display:flex;
align-items:center;
justify-content:center;
text-align:center;
padding:80px 20px;
background:linear-gradient(135deg,#061a2f 0%,#0b2f55 50%,#071321 100%);
overflow:hidden;
}

.hero::before{
content:"";
position:absolute;
top:0;
left:0;
right:0;
bottom:0;
background:radial-gradient(circle at top right,rgba(0,191,255,.25),transparent 45%);
}

.overlay{
position:relative;
z-index:2;
max-width:900px;
padding:40px;
background:rgba(0,0,0,.45);
border:1px solid rgba(0,191,255,.35);
border-radius:20px;
}

h1{
font-size:64px;
color:#00bfff;
text-transform:uppercase;
margin-bottom:20px;
}

h2{
font-size:38px;
margin-bottom:20px;
}

p{
font-size:20px;
margin-bottom:25px;
}

.button{
display:inline-block;
padding:16px 34px;
margin:10px;
background:#00bfff;
color:#fff;
text-decoration:none;
font-weight:bold;
border-radius:8px;
transition:.3s;
}

.button:hover{
background:#008fd1;
transform:translateY(-3px);
}

.secondary{
background:#1b2d42;
}

section{
padding:80px 10%;
}

.cards{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:25px;
margin-top:40px;
}

.card{
background:#10243d;
border:1px solid #00bfff;
border-radius:12px;
padding:30px;
text-align:center;
transition:.3s;
}

.card:hover{
transform:translateY(-8px);
box-shadow:0 0 25px rgba(0,191,255,.35);
}

ul{
margin-left:20px;
margin-top:20px;
}

footer{
background:#020b16;
padding:40px;
text-align:center;
color:#bfc9d6;
}

@media(max-width:768px){

h1{
font-size:42px;
}

h2{
font-size:28px;
}

p{
font-size:18px;
}

.button{
display:block;
width:90%;
margin:15px auto;
}

section{
padding:60px 20px;
}

}